Tool support and drive

Claim 1

A DRIVE MECHANISM FOR A DRILL OR THE LIKE COMPRISING, A SPINDLE MEMBER HAVING A PERIPHERAL SURFACE DEFINING AT LEAST SEGMENTS OF A CYLINDER AND FIRST AND SECOND ENDS, A SPINDLE SUPPORT MEMBER HAVING A SURFACE DEFINING AT LEAST SEGMENTS OF A CYLINDER AND THE WALLS OF A BORE, SAID SPINDLE MEMBER BEING DISPOSED AT LEAST IN PART IN THE BORE, SAID PERIPHERAL SURFACE OF SAID SPINDLE MEMBER AND THE WALLS OF SAID BORE BEING COMPLEMENTAL AND CLOSELY SPACED TO DEFINE A LOAD CARRYING FLUID FILM FORMING REGION THEREBETWEEN, ONE OF SAID MEMBERS BEING MAGNETICALLY SUSCEPTIBLE, THE OTHER OF SAID MEMBERS INCLUDING MAGNETIC FIELD PRODUCING MEANS GENERATING A MAGNETIC FIELD TO POSITION THE MAGNETICALLY SUSCEPTIBLE MEMBER AXIALLY, SAID SUPPORT MEMBER INCLUDING A PORTION CLOSING ONE END OF THE BORE TO DEFINE A FLUID CAVITY BETWEEN THE PORTION AND THE SPINDLE FIRST END WHEN THE SPINDLE IS MAGNETICALLY POSITIONED, FLUID MEANS CONNECTED TO A FIRST ONE OF THE MEMBERS TO INTRODUCE FLUID UNDER PRESSURE TO THE CAVITY AND DRIVE THE SPINDLE AXIALLY, SAID SPINDLE INCLUDING TOOL HOLDING MEANS AT SAID SECOND END, SAID SPINDLE AND TOOL HOLDING MEANS AT SAID SECOND END, SAID SPINDLE AND MEMBER INCLUDING MEANS TO CAUSE RELATIVE ROTATION THEREOF, AND MEANS FOR GENERATING A LOAD-CARRYING FILM OF AMBIENT FLUID IN SAID FILM FORMING REGION FOR RADIALLY SUPPORTING SAID SPINDLE MEMBER OUT OF FRICTIONAL CONTACT WITH THE WALLS OF SAID BORE.